1 files changed, 89 insertions, 0 deletions
diff --git a/src/3rdparty/pcre2/src/sljit/allocator_src/sljitExecAllocatorFreeBSD.c b/src/3rdparty/pcre2/src/sljit/allocator_src/sljitExecAllocatorFreeBSD.c
new file mode 100644
index 0000000000..3b93a4df76
--- /dev/null
+++ b/src/3rdparty/pcre2/src/sljit/allocator_src/sljitExecAllocatorFreeBSD.c
@@ -0,0 +1,89 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/mman.h>
+#include <sys/procctl.h>
+
+#ifdef PROC_WXMAP_CTL
+static SLJIT_INLINE int sljit_is_wx_block(void)
+{
+	static int wx_block = -1;
+	if (wx_block < 0) {
+		int sljit_wx_enable = PROC_WX_MAPPINGS_PERMIT;
+		wx_block = !!procctl(P_PID, 0, PROC_WXMAP_CTL, &sljit_wx_enable);
+	}
+	return wx_block;
+}
+
+#define SLJIT_IS_WX_BLOCK sljit_is_wx_block()
+#else /* !PROC_WXMAP_CTL */
+#define SLJIT_IS_WX_BLOCK (1)
+#endif /* PROC_WXMAP_CTL */
+
+static SLJIT_INLINE void* alloc_chunk(sljit_uw size)
+{
+	void *retval;
+	int prot = PROT_READ | PROT_WRITE | PROT_EXEC;
+	int flags = MAP_PRIVATE;
+	int fd = -1;
+
+#ifdef PROT_MAX
+	prot |= PROT_MAX(prot);
+#endif
+
+#ifdef MAP_ANON
+	flags |= MAP_ANON;
+#else /* !MAP_ANON */
+	if (SLJIT_UNLIKELY((dev_zero < 0) && open_dev_zero()))
+		return NULL;
+
+	fd = dev_zero;
+#endif /* MAP_ANON */
+
+retry:
+	retval = mmap(NULL, size, prot, flags, fd, 0);
+	if (retval == MAP_FAILED) {
+		if (!SLJIT_IS_WX_BLOCK)
+			goto retry;
+
+		return NULL;
+	}
+
+	/* HardenedBSD's mmap lies, so check permissions again. */
+	if (mprotect(retval, size, PROT_READ | PROT_WRITE | PROT_EXEC) < 0) {
+		munmap(retval, size);
+		return NULL;
+	}
+
+	return retval;
+}
+
+static SLJIT_INLINE void free_chunk(void *chunk, sljit_uw size)
+{
+	munmap(chunk, size);
+}
+
+#include "sljitExecAllocatorCore.c"